Convex and Starlike Functions Defined on the Subclass of the Class of the Univalent Functions $S$ with Order $2^{-r}$

In this paper, some conditions have been improved so that the function $g(z)$ is defined as $g(z)=1+\sum_{k\ge 2}^{\infty}a_{n+k}z^{n+k}$, which is analytic in unit disk $U$, can be in more specific subclasses of the $S$ class, which is the most fundamental type of univalent function. It is analyzed...

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Main Authors: İsmet Yıldız, Oya Mert, Alaattin Akyar
Format: Article
Language:English
Published: University of Maragheh 2022-10-01
Series:Sahand Communications in Mathematical Analysis
Subjects:
Online Access:https://scma.maragheh.ac.ir/article_696650_dcf8eb7e6811fa9ee0ae9935133f9794.pdf
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author İsmet Yıldız
Oya Mert
Alaattin Akyar
author_facet İsmet Yıldız
Oya Mert
Alaattin Akyar
author_sort İsmet Yıldız
collection DOAJ
description In this paper, some conditions have been improved so that the function $g(z)$ is defined as $g(z)=1+\sum_{k\ge 2}^{\infty}a_{n+k}z^{n+k}$, which is analytic in unit disk $U$, can be in more specific subclasses of the $S$ class, which is the most fundamental type of univalent function. It is analyzed some characteristics of starlike and convex functions of order $2^{-r}$.
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spelling doaj.art-78fb9af74f7144b7bc292d28d1d429412022-12-22T03:36:44ZengUniversity of MaraghehSahand Communications in Mathematical Analysis2322-58072423-39002022-10-0119410911610.22130/scma.2022.541789.1010696650Convex and Starlike Functions Defined on the Subclass of the Class of the Univalent Functions $S$ with Order $2^{-r}$İsmet Yıldız0Oya Mert1Alaattin Akyar2Faculty of Science and Arts, Department of Mathematics, Düzce University, Düzce, Turkey.Faculty of Science and Arts, Department of Mathematics, Tekirdağ Namık Kemal University, Tekirdağ, Turkey.Faculty of Science and Arts, Department of Mathematics, Düzce University, Düzce, Turkey.In this paper, some conditions have been improved so that the function $g(z)$ is defined as $g(z)=1+\sum_{k\ge 2}^{\infty}a_{n+k}z^{n+k}$, which is analytic in unit disk $U$, can be in more specific subclasses of the $S$ class, which is the most fundamental type of univalent function. It is analyzed some characteristics of starlike and convex functions of order $2^{-r}$.https://scma.maragheh.ac.ir/article_696650_dcf8eb7e6811fa9ee0ae9935133f9794.pdfanalytic functionconvex functionstarlike functionunivalent function
spellingShingle İsmet Yıldız
Oya Mert
Alaattin Akyar
Convex and Starlike Functions Defined on the Subclass of the Class of the Univalent Functions $S$ with Order $2^{-r}$
Sahand Communications in Mathematical Analysis
analytic function
convex function
starlike function
univalent function
title Convex and Starlike Functions Defined on the Subclass of the Class of the Univalent Functions $S$ with Order $2^{-r}$
title_full Convex and Starlike Functions Defined on the Subclass of the Class of the Univalent Functions $S$ with Order $2^{-r}$
title_fullStr Convex and Starlike Functions Defined on the Subclass of the Class of the Univalent Functions $S$ with Order $2^{-r}$
title_full_unstemmed Convex and Starlike Functions Defined on the Subclass of the Class of the Univalent Functions $S$ with Order $2^{-r}$
title_short Convex and Starlike Functions Defined on the Subclass of the Class of the Univalent Functions $S$ with Order $2^{-r}$
title_sort convex and starlike functions defined on the subclass of the class of the univalent functions s with order 2 r
topic analytic function
convex function
starlike function
univalent function
url https://scma.maragheh.ac.ir/article_696650_dcf8eb7e6811fa9ee0ae9935133f9794.pdf
work_keys_str_mv AT ismetyıldız convexandstarlikefunctionsdefinedonthesubclassoftheclassoftheunivalentfunctionsswithorder2r
AT oyamert convexandstarlikefunctionsdefinedonthesubclassoftheclassoftheunivalentfunctionsswithorder2r
AT alaattinakyar convexandstarlikefunctionsdefinedonthesubclassoftheclassoftheunivalentfunctionsswithorder2r